Advertisements
Advertisements
प्रश्न
State one factor on which the magnitude of a non-contact force depends. How does the magnitude of a non-contact force change along with distance?
Advertisements
उत्तर
The magnitude of a non-contact force depends on distance. If the magnitude of a non-contact force increasing then distance decreasing.
संबंधित प्रश्न
A force is applied on (i) a non-rigid body and (ii) a rigid body. How does the effect of the force differ in the above two cases?
In a door, handle is provided ......... from the hinges.
Find the moment of force of 20 N about an axis of rotation at distance 0.5 m from the force.
The spanner (or wrench) has a long handle.
A, B and C are the three forces each of magnitude 4 N acting in the plane of the paper as shown in Figure. The point O lies in the same plane.

- Which force has the least moment about O? Give a reason.
- Which force has the greatest moment about O? Give a reason.
- Name the forces producing
(a) Clockwise
(b) anticlockwise moments. - What is the resultant torque about the point O?
Fig. 5 shows a uniform meter scale weighing 200 gf. Provided at its centre. Two weights 300 gf and 500 gf are suspended from the ruler as shown in the diagram. Calculate the resultant torque of the ruler and hence calculate the distance from mid-point where a 100 gf should be suspended to balance the meter scale.

A jack screw is provided with a long arm. Explain why?
State the units of moment of force.
A uniform metre scale is balanced at a 40 cm mark when weights of 20 gf and 5 gf are suspended at 5 cm mark and 75 cm mark respectively. Calculate the weight of metre scale.
